The Tau 2, a keychain-sized powerbank, has been unveiled

On crowdfunding platform Kickstarter, Swiss company Rolling Square has unveiled the Tau 2 compact powerbank.

Swiss company Rolling Square has unveiled the Tau 2 compact powerbank.

The Tau 2 is an always-charged, universal keychain powerbank that can save the day in an emergency.

It’s designed as a small keychain that can be worn on your keychain, yet has enough capacity to charge your smartphone in an emergency.

The Tau 2 is the ultimate all-in-one keychain power pack that can save your life in an emergency.

The Tau 2 features built-in dual connectors (Lightning + Micro USB) and USB-C, allowing you to effortlessly charge any portable device. The Tau 2 has a compact body measuring 56x43x19mm and weighing only 50 grams, with a capacity of 2,000 mAh.

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The Tau 2 Powerbank is available in white and black case colors and comes with a charging station. The novelty is priced at 32 euros (3,150 rubles). A set of two will cost 52 euros (5,118 rubles), a set of three will cost 83 euros (8,170 rubles), and a set of five will cost 130 euros (12,797 rubles).